Journal
CARBON
Volume 51, Issue -, Pages 322-326Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2012.08.059
Keywords
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Funding
- NSF [DMR 1151028]
- China Scholarship Council
- Fundamental Research Funds for the Central Universities [N100702001]
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Flexible and binder-free graphene-TiO2 paper was prepared by a simple route. A unique 3-D nano-structure was achieved with nano-sized TiO2 intercalated between graphene layers as pillars, significantly increasing the Li-ion insertion/extraction rate. At a current rate of 2 Ag-1, the specific capacity can reach 122 mAhg(-1) after 100 charge/discharge cycles. More remarkably, the flexible graphene/TiO2 hybrid paper shows an excellent stability when the rates decrease from 4 Ag-1 back to 200 mAg(-1) with the retained capacity of 175 mAhg(-1). (C) 2012 Elsevier Ltd. All rights reserved.
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